Nice job Henri, looks the part as well. I have been using Roofing Lead Flashing for my roofs, can be scribed to look a bit like Slates but also has the benefit of weight in Windy Weather. If you can get some a piece wedged/glued into your Roof should help keep it in place during even a gale.
What about a ground anchor, hook, and a length of chain with a spring? A bit like the way they fix dining chairs on some ocean going shipsLead is a nice idea! Looks very authentic as well!
I just painted it black (...) and put very fine, white/grayish sand on the wet paint.
I've made the roof a very snug fit so I hope it will not blow away![]()